Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for preparing antifogging plastic film

A plastic film and anti-fog technology, applied in the field of plastic film, can solve the problems of preventing sunlight from passing through, disease, injury, etc., and achieve the effect of ensuring normal growth and increasing light intensity

Inactive Publication Date: 2014-12-03
JIANGSU HAODA
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Plastic films generally used in agriculture are hydrophobic, and part of the water vapor evaporated from the covered surface and crops will condense into water droplets on the inner surface of the plastic film, thereby preventing the penetration of sunlight and affecting the growth of crops.
In addition, the water droplets on the surface of the plastic film will damage the sprouts of the crops, causing diseases

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method for an anti-fogging plastic film is provided, comprising the steps of:

[0017] (1) Weigh polyvinyl chloride and add it to the mixer, turn on the mixer and adjust the stirring speed to 330 rpm, then weigh the remaining components of the anti-fogging plastic film and add In the mixer, after stirring for 30 minutes, the mixture was obtained;

[0018] (2) Add the mixture to a co-rotating twin-screw extruder to granulate to obtain pellets. During the granulation process, the barrel temperature of the co-rotating twin-screw is 45°C for the first stage, 113°C for the second stage, and 113°C for the third stage. Section 119°C, the die head nozzle temperature of the co-rotating twin-screws is 107°C, and the die head temperature of the co-rotating twin-screws is 105°C;

[0019] (3) Cast the pellets to form a film on a steel belt rotating at a constant speed through a die die, the temperature of the steel belt is set at 110°C, the speed of the steel belt is ...

Embodiment 2

[0022] A preparation method for an anti-fogging plastic film is provided, comprising the steps of:

[0023] (1) Weigh polyvinyl chloride and add it to the mixer, turn on the mixer and adjust the stirring speed to 420 rpm, then weigh the remaining components of the anti-fogging plastic film and add In the mixer, after stirring for 30 minutes, the mixture was obtained;

[0024] (2) Add the mixture to a co-rotating twin-screw extruder to granulate to obtain pellets. During the granulation process, the barrel temperature of the co-rotating twin-screws is 40°C for the first stage, 110°C for the second stage, and 110°C for the third stage. Section 123°C, the die nozzle temperature of the co-rotating twin-screw is 111°C, and the die-head temperature of the co-rotating twin-screw is 100°C;

[0025] (3) Cast the pellets through the mold die to form a film on a steel belt rotating at a constant speed. The temperature of the steel belt is set at 115°C, and the speed of the steel belt is...

Embodiment 3

[0028] A preparation method for an anti-fogging plastic film is provided, comprising the steps of:

[0029] (1) Weigh polyvinyl chloride and add it to the mixer, turn on the mixer and adjust the stirring speed to 370 rpm, then weigh the remaining components of the anti-fogging plastic film and add In the mixer, after stirring for 30 minutes, the mixture was obtained;

[0030] (2) Add the mixture to a co-rotating twin-screw extruder to granulate to obtain pellets. During the granulation process, the barrel temperature of the co-rotating twin-screws is 43°C for the first stage, 112°C for the second stage, and 112°C for the third stage. Section 121°C, the die nozzle temperature of the co-rotating twin-screw is 109°C, and the die-head temperature of the co-rotating twin-screw is 103°C;

[0031] (3) Cast the pellets to form a film on a steel belt rotating at a constant speed through a die die, the temperature of the steel belt is set at 120°C, the speed of the steel belt is 2 rpm,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for preparing an antifogging plastic film. The method comprises the following steps: weighing polyvinyl chloride and then adding the polyvinyl chloride to a mixing machine, weighing other components of the antifogging plastic film and adding the other components to the mixing machine, and stirring to obtain a mixture; adding the mixture to a co-rotating twin-screw extruder for granulation to obtain granules; casting the granules to be a film on a steel belt with uniform rotation through a mold die, drying the film on the rotating steel belt and then winding the film through a winding machine to obtain the antifogging plastic film. Due to the way, the antifogging plastic film has functions of light transmission, heat preservation, anti-aging and anti-dropping, all the components can enable water vapor in air close to the film to be adsorbed onto the surface of the film through a compounding technology, and the formed water film flows downward. The illumination intensity is effectively increased, and the normal growth of rice seedlings is ensured.

Description

technical field [0001] The invention relates to the field of plastic films, in particular to a method for preparing an anti-fog drop plastic film. Background technique [0002] Plastic film refers to a meltable or soluble polymer that becomes a soft, uniform, and very thin sheet material through molding and processing. It can be used as a packaging or coating layer, and has been widely used in food, medicine, chemical and other fields. In recent years, agricultural plastic film mulching cultivation technology has been vigorously promoted in my country, and its output and coverage area have reached the first in the world. It is mainly used for shed film, mulch film, sunshade net, insect net, forage film and agricultural non-woven fabric, etc. . [0003] Plastic films generally used in agriculture are hydrophobic, and part of the water vapor evaporated from the covered surface and crops will condense into water droplets on the inner surface of the plastic film, thereby prevent...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C41/28B29B9/06C08L27/06C08K13/02C08K5/1515C08K5/12C08K5/103C08K5/098C08K3/26C08K3/04B29K27/06B29L7/00
Inventor 沈敬栋
Owner JIANGSU HAODA